Activision has dropped a new story trailer for Call of Duty: Black Ops 4 - Zombies mode, showcasing the Blood of the Dead chapter.

By now you know the drill. Four characters end up in a situation in which they’re overcome by wave after wave of zombies out for their blood. Treyarch keeps thinking of ever more ludicrous scenarios for this to happen though, and in this particular Blood of the Dead chapter in COD: BLOPS 4 - Zombies, the four heroes are venturing into a secret laboratory beneath Alcatraz prison.

Now here’s where things get crazy. Richtofen, Dempsey, Takeo and Nikolai encounter “a familiar enemy Hell-bent on imprisoning them for all eternity, the Primis crew quickly realize that the future predicted by the Kronorium - the future they sought to secure - is now in serious jeopardy.” If you haven’t had the pleasure of playing Call of Duty: Black Ops 3 then the Kronorium probably means nothing to you. It’s an ancient book with information on alternate dimensions and universe, as well as details on the Summoning Key and various rare artifacts.

Anyway, things obviously go very, very wrong, and Alcatraz is quickly flooded with waves of brain-munching zombies, a problem easily solved with a swift bullet to the head.

Call of Duty: Black Ops 4 is coming to PC, PlayStation 4 and Xbox One on October 12th. It’ll be the first game in the series that won’t be available via Steam, launching exclusively through Blizzard’s Battle.net platform.